May weather forecast
Boa Esperança, São Tomé and Príncipe

May marks a transition in the weather system of Boa Esperança, São Tomé and Príncipe as it introduces a decrease in temperature along with an increase in humidity. May stands out for its rise in wind speed, with gusts reaching 18.5km/h (11.5mph), the highest for the year. Weather in May bears witness to patterns veering from consistency towards diversity, attributed to the tropical climatic conditions. While days remain warm, nights begin to cool down, adding a tinge of mildness to the generally hot climate. Humidity levels peak at 79%, leading to a more intense hot and humid atmosphere.

Temperature

May's arrival in Boa Esperança registers an average high-temperature of a still moderately hot 27.8°C (82°F), closely aligning with the temperature of the previous month. Nighttime temperatures during May report a consistent average of 26.3°C (79.3°F).

Heat index

The heat index in May is calculated to be a tropical 31°C (87.8°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

The average relative humidity in May is 79%.

Rainfall

In Boa Esperança, in May, it is raining for 20.5 days, with typically 122mm (4.8") of accumulated precipitation. In Boa Esperança, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.

Daylight

The average length of the day in May is 12h and 8min.
On the first day of May, sunrise is at 05:26 and sunset at 17:34. On the last day of the month, sunrise is at 05:27 and sunset at 17:35 GMT.

Sunshine

In May, the average sunshine in Boa Esperança is 7.6h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.